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Self Assembly of Honeycomb TiO<sub>2</sub>Coatings by Tea-Leaf Extracts as the Dispersoids

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World Journal of Condensed Matter Physics 2011年第3期1卷 59-62页

作者： masayuki Kamei 不详

Photo catalytic TiO2 coatings with well defined honeycomb structure were successfully self-assembled on glass substrates by a simple “dip and burn solgel method“. The crux of this new method is that the starting material for the sol-gel coating (the water solution of ammonium titanium citrate) was “doped” with “tea-leaf extracts”. Tea-leaf extracts were completely dissolved in the water solution of ammonium titanium citrate and nucleate uniformly during the drying procedure of the coating precursor formation. This uniformly dispersed nucleation of the “tea-leaf extracts (tannin, catechin…)” were extracted during calcinations and leaving honeycomb-cell like nano-structure in the TiO2 coatings. Self-assembled cells were uniformly distributed in the TiO2 coatings and the diameter of the cells was in the range of 200 - 1000 nm. Fine honeycomb structures were clearly observed with microscopic observations.

关键词： TiO2 Coatings Photo-Catalysis

Introduction to the special issue on reviews of gastric cancer metastasis and treatment

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Journal of Cancer Metastasis and Treatment 2018年第1期4卷 567-570页

作者： masayuki Watanabe Department of Gastroenterological Surgery the Cancer Institute Hospital of Japanese Foundation for Cancer ResearchTokyo 135-8550Japan

It is a great honor for me to introduce the special issue entitled reviews of Gastric Cancer Metastasis and Treatment.I’ve been focusing on 6 topics including tumor microenvironment(TME),biomarker research,regional variation in gastric cancer treatment,diagnosis and treatment for peritoneal carcinomatosis(PC),surgical treatment for advanced or metastatic gastric cancer,and novel treatment *** special issue includes 18 review articles concerning these *** has been proven to be deeply implicated in tumor progression and metastasis in gastric cancer.

关键词： metastasis diagnosis treatment

Processing Technology and Mechanical Properties of Die-Cast Magnesium Alloy AZ91D

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Tsinghua Science and Technology 2004年第5期9卷 612-616页

作者：刘艳改刘文辉熊守美柳百成王罡 MATSUMOTO Yoshihide MURAKAMI masayuki Department of Mechanical Engineering Tsinghua UniversityBeijing 100084China Toyo Machinery and Metal Co. Ltd.Hyogo 674-0091Japan

The mechanical properties of magnesium die-casting components can be improved with im- proved die-casting processing technology. An orthogonal experiment with four factors and three levels (Lq, 34) was used to evaluate the effect of various die-casting processing parameters on the quality and me- chanical properties of an AZ91D magnesium alloy cylinder head cover component. The results show that the injection speed and casting and die temperatures all influence the component quality, with the influence of the casting pressure being the smallest. The injection speed and casting pressure are the two most im- portant factors influencing the tensile strength. The best die-casting parameters for the magnesium alloy cyl- inder head cover component were determined to be a casting temperature of 660℃, a die temperature of 200℃, an injection speed of 70 mgs?1, and a casting pressure of 65 MPa. The porosity is one of the most important parameters influencing the casting strength.

关键词： AZ91D die casting magnesium process parameters mechanical properties

Sensitive and Reproducible Photocatalytic Activity Evaluation Instrument for Transparent Coatings

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World Journal of Condensed Matter Physics 2012年第1期2卷 47-49页

作者： masayuki Kamei National Institute for Materials Science Tsukuba Japan

A new photocatalytic activity (PC) measurement instrument based on the measurement of the photo-induced reduction of Ag ions was proposed. The feature of this system is to perform “ultraviolet irradiation for PC activation” and “Ag film thickness determination for PC evaluation” simultaneously and automatically. Realizing a PC measurement system with high sensitivity, wide dynamic range, easy operation and reproducibility, which is especially suited for the PC measurement of the coatings on transparent substrates.

关键词： TiO2 Coatings Photo-Catalysis

Effects of Bare-Ground Revegetation Techniques Using Imperata cylindrica on Changes in the Plant Cover and Species Richness during Early Succession

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Open Journal of Ecology 2016年第8期6卷 471-483页

作者： Susumu Yamada masayuki Nemoto Institute for Agroecosystem Services Graduate School of Agricultural and Life Sciences University of Tokyo Tokyo Japan

Riverdikes are habitats that must be revegetated quickly in order to prevent soil erosion. With increasing pressure to improve the cost efficiency of management, new revegetation techniques suitable under reduced mowing frequencies are required. Imperata cylindrica (L.) P. Beauv. is an important component of grasslands in several Asian countries. Its vigorous rhizome elongation should be useful for quickly covering bare ground. We tested the effects of sowing (at two densities), transplanting, and sodding of I. cylindrica on plant cover and species richness of established vegetation over 3 years. The sodding and high-density sowing treatments achieved the most rapid increase in cover, followed by low-density sowing, transplanting, and the control. By year 2, however, the cover in the low- and high-density sowing treatments was similar. The sodding treatment had significantly fewer species than the other treatments in year 1. Between years 1 and 2 and years 2 and 3, the total number of species increased in the transplanting treatment, whereas it decreased in the sodding and two sowing treatments. Accordingly, if stabilization and erosion control are the priority, introduction of I. cylindrica using sod and high-density sowing is the most suitable method. If immediate green-up is not imperative, low-density sowing is likely to provide available resources for new seedlings of diverse species to become established, allowing the introduction of representative species in semi-natural grasslands. More research will be needed on the effects of introducing diverse species (e.g., sowing seed mixtures) that include I. cylindrica on the resulting floristic composition.

关键词： Restoration Riverdike Sod Sowing Transplanting

Urban-Rural Comparison of HBV and HCV Infection Prevalence in Eastern China

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Biomedical and Environmental Sciences 2000年第4期13卷 243-253页

作者： QU JIANG-BIN ZHANG ZUO-WEN SHINICHIRO SHIMBO TAKAO WATANABE HARUO NAKATSUKA NAOKO MATSUDA-INOGUCHI KAE HIGASHIKAWA masayuki IKEDA Department of Hygiene Faculty of Public HealthShandong Medical UniversityJinan 250012Shandong ProvinceChina Department of Food and Nutrition Kyoto Women’s UniversityKyoto 605-8501Japan Miyagi University of Education Senda 980-0845Japan Miyagi University Taiwa-cho 981-3298Japan Kyoto Industrial Health Association Kyoto 604-8472Japan

The present study was initiated to make an urban rural comparison of the prevalence of cases positive to hepatitis B and C virus (HBV and HCV, respectively) infection markers in densely populated eastern half of China. For this purpose, 10 survey sites were selected, i.e., six sites in urban areas (the city group; Beijing, Shanghai and four provincial capitals) and four sites in rural areas (the village group ; one village each in Jilin and Shandong Provinces, and two villages in Shaanxi Province). About 50 adult women per site volunteered to participate, from whom 494 valid blood samples were collected. Positivities to HBsAg (HBsAg +), anti HBs (anti HBs +) and anti HBc (anti HBc +) were examined by RIA methods, and that to anti HCV (anti HCV +) by either EIA or RIA. Those positive to any one of the three HBV infection markers were taken as HBV infection positive (HBV +). The prevalence of HBsAg +, HBV + and anti HBc + was 8%, 70% and 2.7% in the city group, and 8%, 65% and 2.0% in the village group, and no significant difference was found between the two groups. The overall prevalence was 8% for HBsAg +, 68% for HBV +, and 2.4% for anti HCV +. The results were discussed in reference to some 20 papers each on HBV + and anti HCV + prevalence in China published since 1991. The reviewing of these papers confirmed that the prevalence of HBV was high (i.e., in excess of 50%), whereas the prevalence of anti HCV was low (well below 5%), and that no substantial difference was found between the rural and urban populations.

关键词： HEPATITIS-C VIRUS HEPATOCELLULAR-CARCINOMA NUTRIENT INTAKE SOUTHERN CHINA ADULT WOMEN PROVINCE ANTIBODIES MARKERS

Application of Optical Flow Analysis to Shadowgraph Images of Impinging Jet

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Journal of Flow Control, Measurement & Visualization 2020年第4期8卷 173-187页

作者： Masato Hijikuro masayuki Anyoji Interdisciplinary Graduate School of Engineering Sciences Kyushu University Fukuoka Japan

In this study, we apply the optical flow method to the time-series shadowgraph images of impinging jets using a high-speed video camera with high spatial and temporal resolution. This image analysis provides quantitative velocity vector fields in the object space without tracer particles. The analysis results clearly capture the details of the coherent vortex structure and its advection from the shear layer of the free jet. Although the results still leave challenges for the quantitative validation, the results show that this analysis method is effective for understanding the details of the physical phenomenon based on the quantitative values extracted from the shadowgraph images.

关键词： Impinging Jet Optical Flow Shadowgraph Image Analysis Velocity Vector

Isolated ileal perforation due to cytomegalovirus reactivation during management of terbinafine hypersensitivity

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World Journal of Gastroenterology 2010年第26期16卷 3339-3342页

作者： Soichi Sano Hiroki Ueno Keiko Yamagami Yosuke Yakushiji Yoshihiro Isaka Isao Kawasaki Masashi Takemura Takeshi Inoue masayuki Hosoi Department of Internal Medicine Osaka City General Hospital Osaka 534-0021 Japan Department of Metabolism and Endocrinology Osaka City General Hospital Osaka 534-0021 Japan Department of Gastrointestinal Surgery Osaka City General Hospital Osaka 534-0021 Japan Department of Pathology Osaka City General Hospital Osaka 534-0021 Japan

We report a case of 71-year-old man who developed a hypersensitivity syndrome associated with terbinafine. He was placed on terbinafine (250 mg/d) for the treatment of tinea pedis due to diabetes mellitus. Following the treatment with terbinafine, he developed druginduced hypersensitivity syndrome (DIHS). Systemic corticosteroid led to transient improvement of his clinical manifestations. Three months after disease onset, he presented with panperitonitis due to ileal perforation, and underwent an emergency operation. The affected ileum was resected and ileostomy was performed in the terminal ileum. Cytomegalovirus (CMV)-specific IgG antibodies were significantly increased, high-titer CMV antigenemia was detected, and pathological examination of the resected ileum confirmed CMV infection. Based onthese observations, we strongly recommend that physicians monitor reactivation of the family of herpesvirus other than herpesvirus 6, to manage DIHS properly.

关键词： Terbinafi ne Drug hypersensitivity Human herpesvirus 6 Cytomegalovirus Intestinal perforation Ileum

Turbulence Intensity Effects on a Leading-Edge Separation Bubble of Flat Plate Wing at Low-Reynolds Numbers

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Journal of Flow Control, Measurement & Visualization 2020年第4期8卷 188-207页

作者： Katsuya Kajiwara masayuki Anyoji Interdisciplinary Graduate School of Engineering Sciences Kyushu University Fukuoka Japan

In this study, we experimentally investigate the effects of mainstream turbulence intensity (Ti) on a leading-edge separation bubble under low-Reynolds number (Rec) conditions range of 2.0 × 104 to 6.0 × 104. We used a flat plate to fix a separation point at the leading edge. Also, we visualized the behavior of the leading-edge separation bubble using the smoke wire technique and Particle Image Velocimetry (PIV) measurement. Furthermore, we measured the effect of Ti on the turbulent transition process in the separated shear layer using a hot-wire anemometer. The results indicate that the bypass transition for large Ti causes the turbulent transition, and so accelerates the reattachment of the separated shear layer. The results show that the bypass transition promotes the reattachment of the separated shear layer to maintain the leading-edge separation bubble on the upper surface even at high angles of attack, increasing the stall angle.

关键词： Separation Turbulence Transition Fluid Dynamics